1 1/2cups(345g)Mashed Bananas, (about 3-4 medium sized bananas)
1/2cup + 1 tbsp(126g) Vegetable Oil
1/2cup(100g)Sugar
1/2cup(110g)Brown Sugar
1 1/2tsp(8g)Vanilla Extract
2Large(100g)Eggs
1/2cup(120g)Sour Cream
2cups(250g)All Purpose Flour
2tspBaking Powder
1/4tspBaking Soda
1/2tspKosher Salt
1/2tbspCinnamon
Cinnamon Streusel
1/2cup(100g)Sugar
1tbspCinnamon
Instructions
Preheat oven to 350 degrees F. Line a 9x5 inch loaf pan with parchment paper so that there's about 2 inches overhang (this makes it easier to remove the loaf from pan after baking).
In a large bowl, add bananas, vegetable oil, sugar, brown sugar, vanilla extract, eggs, and sour cream. Use an electric hand mixer to mix everything together until smooth (it's ok if it's a little lumpy from the bananas, but should be mostly smooth). 1 1/2 cups Mashed Bananas1/2 cup + 1 tbsp Vegetable Oil 1/2 cup Sugar 1/2 cup Brown Sugar1 1/2 tsp Vanilla Extract2 Large Eggs 1/2 cup Sour Cream
Add all purpose flour, baking powder, baking soda, kosher salt, and cinnamon. Continue to mix until combined and there's no patches of flour in the batter. 2 cups All Purpose Flour2 tsp Baking Powder1/4 tsp Baking Soda1/2 tsp Kosher Salt 1/2 tbsp Cinnamon
In a small bowl, combine cinnamon and sugar. 1/2 cup Sugar1 tbsp Cinnamon
Add half of the banana bread batter to the loaf pan. Sprinkle half of the cinnamon sugar mixture on top of the batter. Add the remainder of the batter on top and then sprinkle the remaining cinnamon sugar on top.
Bake on the middle rack for 55-60 minutes. Allow the banana bread to cool in the pan for about 30 minutes, then remove onto a wire rack to cool completely.
Notes
Use very over-ripe bananas! The riper the bananas, the sweeter and more flavorful your banana bread will be. Think deeply speckled brown spots or nearly black peels! This is where the magic happens.
Layer the cinnamon sugar swirl gently. Sprinkle evenly and avoid pressing it down. This helps create a pretty swirl without weighing down the batter or causing sinking.
Bake in the center rack of the oven. The middle rack ensures even heat circulation so the loaf bakes through without burning on top or staying gummy in the center.
Let it cool completely before slicing! Banana bread continues to set as it cools. Waiting at least 30 minutes (or longer!) gives you cleaner slices and better texture.